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Community Water System · PWS NY0100202

Rensselaerville WD

Medusa, New York 12120 - drinking water served from surface water sources to 200 people, tracked in EPA SDWIS and UCMR5.

200
People served
87
EPA violations
67
Health-based
Untested
UCMR5 result

The verdict

EPA records 87 drinking-water violations at Rensselaerville WD, 77% of them health-based - above the New York per-system average.

87
Total EPA violations on record
77%
Health-based (MCL / treatment failure)
200
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Rensselaerville WD

Rensselaerville WD is a local-owned community water system that delivers drinking water to 200 residents in Medusa, New York (Albany County) through 70 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 87 total violations for this system , of which 67 (77%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 12 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 37 violations (TT, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across New York, EPA tracks 8,098 public water systems serving 19,294,951 people, with 552,003 cumulative violations and 26,817 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 68.2 violations. Statewide, 129 of 332 UCMR5-tested systems have reported PFAS detections (38.9%).

Rensselaerville WD's 87 violations sit above the New York average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
200
Total Violations
87
Health-Based Violations
67
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
70
County
Albany
School/Daycare
No
MCL Violations
24
Monitoring Violations
12
Treatment Tech Violations
43

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 37 2001
Total Haloacetic Acids (HAA5) MCL 16 2022
TTHM MCL 8 2022
Nitrate MR 7 1993
Interim Enhanced Surface Water Treatment Rule TT 5 2022
Coliform (TCR) MR 2 2009
Lead and Copper Rule MR 2 2014
Consumer Confidence Rule Other 2 1999
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 1 2009
Surface Water Treatment Rule MR 1 2004

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Rensselaerville WD.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NY0100202 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New York Drinking Water Authority

New York State Department of Health, Public Water Systems is the primacy agency that licenses and inspects Rensselaerville WD under EPA-delegated authority.

Open NY regulator portal

Source: New York State Department of Health, Public Water Systems

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2022 Total Haloacetic Acids (HAA5) MCL 16 SDWIS / NY0100202 / 2456
2022 TTHM MCL 8 SDWIS / NY0100202 / 2950
2022 Interim Enhanced Surface Water Treatment Rule TT 5 SDWIS / NY0100202 / 0300
2014 Lead and Copper Rule MR 2 SDWIS / NY0100202 / 5000
2009 Coliform (TCR) MR 2 SDWIS / NY0100202 / 3100
2009 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 1 SDWIS / NY0100202 / 0400
2004 Surface Water Treatment Rule MR 1 SDWIS / NY0100202 / 0200
2001 Surface Water Treatment Rule TT 37 SDWIS / NY0100202 / 0200
1999 Consumer Confidence Rule Other 2 SDWIS / NY0100202 / 7000
1993 Nitrate MR 7 SDWIS / NY0100202 / 1040

How Rensselaerville WD Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Rensselaerville WD New York avg Federal benchmark
Total violations 87 68.2 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 67 3.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 200 2,383 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 8,098 regulated public water systems in New York.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Rensselaerville WD water safe to drink? ▼
Rensselaerville WD (PWS ID: NY0100202) has 87 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 200 people using Surface Water sources.
How many people does Rensselaerville WD serve? ▼
Rensselaerville WD serves 200 people in Medusa, New York. It is a Local-owned system using Surface Water water sources with 70 service connections.
What type of violations does Rensselaerville WD have? ▼
Rensselaerville WD has 87 total violations: 67 health-based violations (MCL exceedances or treatment failures), 12 monitoring/reporting violations, and 43 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Rensselaerville WD water? ▼
No PFAS testing data is available for Rensselaerville WD under the EPA's UCMR5 monitoring program.
What water source does Rensselaerville WD use? ▼
Rensselaerville WD uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.